Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3BU callsign genealogy
Currently held by KROL SR, STANLEY J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by N3BU's current licensee, walking backwards.
- Krol Sr, Stanley JMDgranted 2007-10-04cancelled 2008-05-10
Successor callsigns
Callsigns held now by people who previously held N3BU.
- MC LELLAN, SCOTT WPAgranted 2018-07-19
All historical holders
Every license row we've seen with the callsign N3BU, oldest first.
- Miner, Mark S AZ2004-02-21 → cancelled 2006-04-14
- KROL SR, STANLEY J MD2018-04-02 active
- MC LELLAN, SCOTT W— → cancelled 1998-10-05